Home / 1,439,252.28-2,158,502.04-428,101.92

Finding the Fourth Proportional to 1,439,252.28, 2,158,502.04 and 428,101.92

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Solution

The fourth proportional to 1,439,252.28, 2,158,502.04 and 428,101.92 is: 642,040.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,252.28 : 2,158,502.04 = 428,101.92 : x
  2. Step 2: Convert to fraction form
    1,439,252.28/2,158,502.04 = 428,101.92/x
  3. Step 3: Cross multiply
    1,439,252.28x = 2,158,502.04 × 428,101.92
  4. Step 4: Simplify right side
    1,439,252.28x = 924,058,867,647.92
  5. Step 5: Solve for x
    x = 924,058,867,647.92/1,439,252.28
  6. Step 6: Final answer
    x = 642,040.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.